Fountain pen



M. SEGRE Juy 15, 1952 FOUNTAIN PEN 3 Sheets-Sheet 1 Filed May 5. 1947 I NV E NTOR Mar/n St.; p0,

ATTORNEY! M. SEGRE FOUNTAIN PEN July 115, i952 3 Sheets-Sheet 2 Filed May 5. 1947 Nw NL QN N k. QN. HNI

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ATTORNEYJ M. SEGRE FOUNTAIN PEN July 15, 1952 5 Sheets-Sheet 5 Filed May 5. 1947 .Kfz A INVENTOR ATTORNEYS Patented July 15, Ai952 j @UNITED STATES y Agrar OFFICE This invention relates to fountain pens in general and more particularly to a fountain pen having a large ink capacity in comparison with known fountain pens of the automatic filling type.

`An object of the present invention is to provide-a fountain pen wherein the filling is attained by a single easy continuous action and wherein the pen will be completely filled without the necessity of a continuous pumping action of a piston.

A further object of the invention is to provide a fountain pen of the type described wherein thefllling of the pen can be effected with no ldischarge of the inl:v from the reservoir.

AY still further object of the invention is to provide a fountain pen so arranged and con- :structedrthat when filling the pen, the pen proper :and surrounding pen support and pen holder will remain out of the filling ink supply and consequently will notbe in contact with the ink.

Another object of the invention is to provide a pen which is not effected by changes in pressure or temperature and wherein means are provided ,whereby Ythe pen proper will not be iiooded with ink even after immediately lling the pen and wherein the flow of ink from the reservoir to the pen is alwaysthe same regardless ofthe quantity of ink therein.

Still another object of the invention is to providea sturdy and simple constructionV of 'a fountain Apen susceptible ofv easy assembly and disassembly and in which all parts are not susceptible of easy damaging.

Other and further objects of the invention will be` apparent from the following detailed discussion of preferred embodiments of theinvention, taken together with the accompanying drawings .in which Figure l is a longitudinal sectional View of the fountain pen of `the present invention;

Figure 2 is a cross-sectional view taken on the lineZ-Zof Figure 1;

Figure 3 is a cross-sectional View taken on the line 3--3 of Figure 1;r

Figure 4 is a partial sectional view-of `a modification of the filling means for the pen;

Figure 5 is a partial sectionalview of still another lling means for the pen; n

Figure 6 is a cross-sectional View taken on the line 6-5 of Figure 5;

vFigure 7 is a partial sectional view of still an-A other lling means for the pen;

Figure 8 is a cross-sectional view taken on the linev 8 8 of Figure 7;

8 Claims. (Cl. 1Z0- 47) vFigure 9 is a partial sectional view of 'amodi` cation embodying ink absorbing and retaining" means;

Figure 10 is a front elevational View of the embodiment of Figure 9; f f

Figure 11 is a partial cross-sectional view ofv a still further embodiment of the invention' 'disclosing means for preventing foreign material from entering the pen when in use, and

Figure 12 is'a cross-sectional view taken on the line I2-I2 of Figure 1l.

The penhas atube I at the end of whichv a penholder 2 is attached by screwing or by pres"-v sure. In th'e penholder 2 there is an opening intol which ar peny I0 together withl a pen-support 3 are inserted in such a manner that no inkmay passfrom' the reservoir I2 formed' by' the tube I between the penholder andthe pen or, between the: penholder and the pen-support. The' pen-fy into tube. I and serves for flllingand emptying? An extension of needle 4" passes through the piston I3 and forms a bolt I9 which has screw threads thereon'. This bolt isscrewedv reservoir I 2'.

into a tube IBB which is screw-threaded on'the inside and also has screw-threads outside` which againl are screwed intoa tube ISAAof similar Y constructionvas I 8B. Tube I8A is screwed into tube I1 which is internally screw-threaded,l thusl forming ra system of multiplication of screwthreads.

' tionY thereof but prevents it from being detached..

' as tobe easily turned by hand.

Tube I1 is,` on oneend, fixedto button I5 so When the button I5'is turned to the right or to the left,the various threads in combination screw or unscrew and thus, the piston I3 with the'needle Ill are moved with respect to the tube I. To guideV tubes I 8A and IBB there may be provided respective rings 22a and 221:` for each, which are loosely'inserted intube I.

The number of screw-threads andmultiplyna pieces;y may be increased or decreased according to the necessities of construction, size-of the foun'tainepen andthe amount of ink in'relation to the size of thefountain-pen itself.

-Theneedle 4 has two tubular channels 5; 6

therein. Channel-5 extends substantially completely throughthe-needle., from an opening 1. adjacent the lower end to opening I4 at the@ Tube Il passes through piece 2U in which it is'xed by ring `2| which allows rotaV upper end. The other tubular channel 6 starts in the opening I but, its upper end is situated opposite the lowest point of reservoir I2 when the needle is in retracted position or completely inside, i. e. the piston in its highest position. When the needle 4 is in this position, opening 'I is situated oposite a channel 8 leading to space 9 which is situated below the pen I and is for supplying ink to the pen. This space also serves as an inkdeposit under the pen I0 and can be so constructed that it may contain a maximum of ink and at the same time have a large retaining capacity by means of cells or, any retaining system but always permitting an adequate supply to the pen. To avoid leakage of air or ink between needle 4 and pen-support 3 a round packing II as shown in Figure 1 can be inserted around needle 4.

The needle 4 is preferably oval in shape in this embodiment and the oblong opening through pen-support 3 is of a conformingly oval cross section in order to prevent its turning together with the piston I3 fixed to it, as the turning of the needle 4 would prevent functioning 'of the system of screw-threads and consequently the system of filling the pen. 'I'he needle could also have other shapes, for example, fiat with round edges.

'I'he described fountain pen operates as follows: to fill it, button I5 which is joined to tube I'I is rotated to move the piston I3 until ink commences to flow out of the end of needle 4. When the ink thus begins to flow out, the end of needle 4 together with opening I is immersed into the ink and button I5 is then rotated in the opposite direction so as to retract piston I3 into the reservoir I2 together with the needle, which should during this time remain in the ink. A vacuum is thereby created within reservoir I2 and the ink will therefore pass through opening 1, tubular channel 5 and through opening I4 into the reservoir. When the piston I3 and needle 4 reach the fully retracted position, the fountain-pen is completely filled and communication is thenv established between reservoir I2 through channel 6, opening l, channel 8V up to the space 9 which supplies pen I0 as in other type fountain-pens.

The communication through channel 6 to the pen is established only when the piston I3 and needle 4 are in their fully retracted position and the filling operation is finished. Tubular channel 6 is solely for providing ink to space 9 which forms supply and deposit means for ink behind the pen.

When filling the reservoir I2 is completed, the needle is empty because the last part of the piston movement is done without thte needle 4 being immersed in the ink. Immediately, a circulation is established between reservoir I2 and spaces 6, l, 8, 9. Therefore the ink flows from reservoir I2 to spaces 6, l, 8, 9. Meanwhile air will escape through spaces 8, 1, 5, I4. When ink has iilled space 9 (i. e. the pen islready for writing), the flow of ink to the pen is interrupted. Subsequently the flow of ink continues normally by gravity and cohesion of the liquid.

In Figure 4 a niodiiication of the construction is shown as regards the supply of ink to the pen. Needle 4' has, in this construction, only the tubular channel 5 which serves for filling the pen. The supply to the pen is effected through a channel 9a in support 3', and from there by way of channel 23 through channel 24 in needle 4 and channel 25 to space 9b situatedbeneath the pen I0 which is consequently supplied by it. When moving the needle for filling or emptying the fountain-pen, channel 24 changes its position thereby interrupting communication between channel 23 and channel 25 and cuts oil' the path of the ink to the pen. At the same time, this path of communication between the reservoir and the outside is cut on. Thus, communication between reservoir I2 and the exterior for filling and emptying the pen is established through channel 5 in the needle. It is possible in this modification to retain a channel 8' to insure the balance of ink inside the pen. Nevertheless, channel 8' is not an indispensable part of the supply system for the pen. A packing II' can be used to prevent ink from passing from channel 23 to channel 25 when the pen is being lled or emptied.

In lFigures 5 and 6 another embodiment of the supply system for the pen is shown. Here the ink flows from reservoir I2 through a channel 26 and an annular channel 21 around the needle 42 through a channel 28, to channel Il2 which supplies the pen. By moving the needle with the annular channel 21, communication between channel 26 and channel 28 and thus, supply to the pen, is interrupted.

In Figures 7 and 8 a diilerent supplying system for the pen is shown. The ink flows from reservoir IZ through a channel 29 formed in the needle 43 and through channel 28 to channel 93 which supplies the pen. By moving the needle 43 with channel 29, communication between the latter and reservoir I2 is interrupted.

Figures 9 and 10 show means to absorb ink remaining on the exterior surface of the needle 40 when it is drawn out of the ink after having lled the pen. In the lower end of pen-support 34 there are situated radially, around the opening of needle 40, channels which together form space 30.V This space should possess sufficient capacity to absorb all ink adhering to the outer surface of the needle 40 and the channels comprising it should be so constructed as to possess a capillary action of adhesion.

Figures ll and 12 show means for closing space 30 when the needle 45 is inside of the pen, to prevent spaces 30 and 55 from getting dirty while the pen is being used. It consists in a disc 33, pivotally connected at 34 which opens and closes together with the needle 45 as the needle is extended or retracted.

It is obvious that changes in construction and modifications of details can be effected without departing from the scope of the present invention as defined in the appended claims.

I claim:

l. In a fountain pen, in combination a barrel, a pen support in an end of said barrel, a point on said pen support, said pen support having a longitudinal bore therethrough, a filler-needle movably mounted in said barrel, an end of said filler-needle entering said bore in said pen support and being slidable therein, a piston fixed to said ller-needle in said barrel at an end remote from said pen support, said` filler-needle having a channel therethrough and an opening from said channel in communication with said barrel adjacent one end thereof and another opening from said channel through the side of said fillerneedle at the opposite end thereof, said pen support having an inwardly directed opening therein for coaction with said other opening in said fillerneedle, means secured ,to said filler-needle for moving said piston and said filler-needle with respect to said barrel whereby the said other opening insaid filler-needle is projected from said pen support for iilling and emptying of said pen, and ink feeding means for said pen point in communication with said opening in said pen support, said ink feeding means being operable only when said ller-needle and said piston are in fully retracted position when said longitudinal bore is in open communication with said opening in said pen support.

2. In a fountain pen as claimed in claim 1, said means for moving said filler-needle and said piston comprising a plurality of tubeshaving screw threaded surfaces thereon, said tubes being mounted one over the other and the screw threaded portions thereof of one said tube coacting with the screw threaded portion of an adjacent tube, the innermost of said tubes being in screw threaded contact with said filler-needle whereby upon rotation of the outermost of said tubes said piston and said filler-needle will be urged forwardly through said coacting tubes.

3. In a fountain pen as claimed in claim 1, said filler-needle having a second channel therein opening at one end into said barrel and at the other end thereof communicating with the said ink deposit for said pen point through said opening in said pen support, the first said opening of said second channel being closed upon forward movement of said filler-needle and the second said opening of said second channel being out of communication with said ink deposit upon forward motion of said filler-needle, said openings of said second channel being operable when said Iller-needle and said piston are in fully retracted position to provide ink flow from said barrel to said pen point.

4. In a fountain pen as claimed inv claim l, said ink feeding means for said pen point comprising a channel in said pen support having two branches therein directed towards and in communication with the external surface of said Tiller-needle, said filler-needle having a recess therein normally in communication with Iboth said branches when said filler-needle is in fully retracted position, the surface of said fillerneedle cutting off communication between said branches when said filler-needle is moved forwardly for lling or emptying said pen.

5. In a fountain pen as claimed in claim 1, said ink feeding means for said pen point comprising a longitudinal channel in said pen support in open communication with ink in said barrel, an annular channel around the periphery of said filler-needle, said pen support having a second channel therein communicating at an end thereof with an ink deposit for said pen point and communicating with said annular channel when said ller-needle is in fully retracted position, said annular channel being out of communication with said second channel in said pen support when said filler-needle is moved forwardly.

6. In a fountain pen as claimed in claim l, said ink feeding means comprising a longitudinal channel formed in the external surface of said filler-needle, a channel in said pen support communicating at one end thereof With an ink deposit for said pen point and at the other end thereof with said external channel in said fillerneedle, an end of said external channel in said filler-needle being in communication with ink in said barrel when said filler-needle is in fully retracted position and being out of communication with ink when said filler-needle is moved forwardly.

7. In a fountain pen as claimed in claimA 1,Av

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,509,420 Edelman Sept. 23, 1924 1,548,502 Attula Aug. 4, 1925 1,567,527 Lynn et al. Dec. 29, 1925 1,706,616

Kovacs Mar. 276, 1929 

